â¢ 1958 Code of Ethics for Government Service7 â¢ Senate Select Committee on Standards and Conduct (1964) â¢ Select Committee on ethics (1977) â¢ House Committee on Standards of Official Conduct (1967) â¢ Committee on Ethics (2011) â¢ Congressional Ethics Office (2008) â¢ Mechanism â censure
NH4I will completely dissolve in ammonium and iodide ions: of which I-is neutral and NH4+ is quite a weak acid (pKa = 9.25). (The molar standard solution of NH4I will have pH approx. 4.6).
Acidic and Basic Amino Acids. There are three amino acids that have basic side chains at neutral pH. These are arginine (Arg), lysine (Lys), and histidine (His). Their side chains contain nitrogen and resemble ammonia, which is a base.Their pKa's are high enough that they tend to bind protons, gaining a positive charge in the process.here are three amino acids that have basic side chains at neutral pH. These are arginine (Arg), lysine (Lys), and histidine (His). Their side chains contain nitrogen and resemble ammonia, which is a base.